Natural and Fe(II)-induced reduction of hexavalent chromium in soil

Alja Margon; Massimiliano Valentini; Claudio Mondini; Tania Sinicco; Paolo Sequi; Liviana Leita

Natural and Fe(II)-induced reduction of hexavalent chromium in soil

Alja Margon^*, Massimiliano Valentini, Claudio Mondini, Tania Sinicco, Paolo Sequi, Liviana Leita

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In this study the influence of iron sulphate (FeSO₄) on the dynamics of Cr(VI) - Cr(III) reduction in Cr(VI) spiked soil was evaluated, together with the concomitant assessment of the effect of the different treatments on soil microbial biomass size and activity. The results indicate that during the incubation period, the concentration of Cr(VI) in soil decreased over time, thus evidencing a natural attenuation capacity of soil towards Chromate reduction. However, soil microbial biomass and respiration rate were both negatively affected by the presence of Cr(VI), and did not recover during the experiment. Soil amendment with FeSO₄ increased the Cr(VI) reduction rate and mitigated its negative effect towards soil microbial biomass and activity.

Original language	English
Pages (from-to)	2865-2869
Number of pages	5
Journal	Fresenius Environmental Bulletin
Volume	23
Issue number	11A
Publication status	Published - 2014
Externally published	Yes

Keywords

Chromate reduction
Hexavalent chromium
Iron sulphate
Soil microbial biomass

ASJC Scopus subject areas

Environmental Chemistry
Waste Management and Disposal
Pollution

Cite this

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title = "Natural and Fe(II)-induced reduction of hexavalent chromium in soil",

abstract = "In this study the influence of iron sulphate (FeSO4) on the dynamics of Cr(VI) - Cr(III) reduction in Cr(VI) spiked soil was evaluated, together with the concomitant assessment of the effect of the different treatments on soil microbial biomass size and activity. The results indicate that during the incubation period, the concentration of Cr(VI) in soil decreased over time, thus evidencing a natural attenuation capacity of soil towards Chromate reduction. However, soil microbial biomass and respiration rate were both negatively affected by the presence of Cr(VI), and did not recover during the experiment. Soil amendment with FeSO4 increased the Cr(VI) reduction rate and mitigated its negative effect towards soil microbial biomass and activity.",

keywords = "Chromate reduction, Hexavalent chromium, Iron sulphate, Soil microbial biomass",

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TY - JOUR

T1 - Natural and Fe(II)-induced reduction of hexavalent chromium in soil

AU - Margon, Alja

AU - Valentini, Massimiliano

AU - Mondini, Claudio

AU - Sinicco, Tania

AU - Sequi, Paolo

AU - Leita, Liviana

PY - 2014

Y1 - 2014

N2 - In this study the influence of iron sulphate (FeSO4) on the dynamics of Cr(VI) - Cr(III) reduction in Cr(VI) spiked soil was evaluated, together with the concomitant assessment of the effect of the different treatments on soil microbial biomass size and activity. The results indicate that during the incubation period, the concentration of Cr(VI) in soil decreased over time, thus evidencing a natural attenuation capacity of soil towards Chromate reduction. However, soil microbial biomass and respiration rate were both negatively affected by the presence of Cr(VI), and did not recover during the experiment. Soil amendment with FeSO4 increased the Cr(VI) reduction rate and mitigated its negative effect towards soil microbial biomass and activity.

AB - In this study the influence of iron sulphate (FeSO4) on the dynamics of Cr(VI) - Cr(III) reduction in Cr(VI) spiked soil was evaluated, together with the concomitant assessment of the effect of the different treatments on soil microbial biomass size and activity. The results indicate that during the incubation period, the concentration of Cr(VI) in soil decreased over time, thus evidencing a natural attenuation capacity of soil towards Chromate reduction. However, soil microbial biomass and respiration rate were both negatively affected by the presence of Cr(VI), and did not recover during the experiment. Soil amendment with FeSO4 increased the Cr(VI) reduction rate and mitigated its negative effect towards soil microbial biomass and activity.

KW - Chromate reduction

KW - Hexavalent chromium

KW - Iron sulphate

KW - Soil microbial biomass

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IS - 11A

ER -

Natural and Fe(II)-induced reduction of hexavalent chromium in soil

Abstract

Keywords

ASJC Scopus subject areas

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